That gearbox on M235 sounds like a muted rifle bolt. However, it doesn't make this sound in mine and it sometimes feels sloppy in hot weather. Do they have better gearboxes in Euro-spec car or thicker gearbox-oil ? From watching and listening to those videos I always get an impression we get shortchanged in North America.

I've been listening carefully to the video, and I'm positive the clinking you hear is NOT the gearbox, but the guys hammering the pedals on and off, specially the gas pedal.
I really can't hear a single noise I can atribute to the gearbox, just the pedals and other things he has hanging around!